Amazon SES vs Postmark

Amazon Simple Email Service (SES) is a cloud-based email sending and receiving service from AWS designed for marketers and application developers. It supports transactional, marketing, and bulk email delivery with deliverability tools, reputation monitoring, and email authentication.

Postmark is Transactional email API focused on fast, reliable delivery with detailed analytics and template support.. It is available under a freemium model. This tool falls under the developer utilities category.